1.
To replace the cartridge, remove shelf first and cover lamp.
2.
First remove the old filter by slowly turning it to the left. The unlocked symbol will be lined up with indicator line that is molded into the control box area.
3.
Apply the month sticker to the cartridge as a reminder to replace the filter within six months and remove the red cap.
4.
Line up the cartridge ears so that it can be inserted into the filter head. Twist the cartridge 1/4 turn clockwise to lock it into place. You will feel a stop and the locked symbol should now be lined up with the indicator line.
5.
Move the cover lamp and shelf to the intital position.
6.
Dispense water through the dispenser for 3 minutes to purge the system.